How To Fix /SAPAPO/TSM791 - Data source & is not assigned to a planning area

/SAPAPO/TSM791 - Overview

• Message type: E = Error

• Message class: /SAPAPO/TSM -

• Message number: 791

• Message text: Data source & is not assigned to a planning area

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TSM791 - Data source & is not assigned to a planning area ?

  The SAP error message /SAPAPO/TSM791 indicates that a specific data source is not assigned to a planning area in the SAP Advanced Planning and Optimization (APO) module. This error typically arises when you are trying to execute a planning function or process that requires data from a data source that has not been properly configured or linked to a planning area.
  
  Cause:
  
  Data Source Not Assigned: The primary cause of this error is that the data source you are trying to use has not been assigned to any planning area in the system.
  
  Configuration Issues: There may be issues in the configuration of the planning area or the data source itself.
  Transport Issues: If the configuration was recently transported from another system, it may not have been set up correctly in the target system.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Data Source Assignment:
  
  Go to the SAP APO system and navigate to the